Improvement in parlor grindstones



J. M. SIMPSON. PARLOR GRINDSTONE.

Patented Aug, 16, 1870.

JOSIAH M. SIMPSON, OF OSHKOSH, WISCONSIN.

Letters Patent No. 106,413, dated August 16, 1870.

IMPROVEMENT IN PARLOR. GRINDSTONBS.

The Schedule referred to'in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that- I, Josmrr M. Smu'sos, of the city of Oshkosh, in thecounty ofWinnebago and State of \Viseonsin, have invented certain newand useful Improvements in parlor grindstones; and I do hereby declarethat the ihllowiug is a full, clear, and

ezi'act description of the same, reference being had to the accompanyingdrawing and to the letters of reference marked thereon.

To enable others skilled in the artrto coustructand use the invention, Iwill proceed to describe it.

The first part of my invention relates to the.coating of a woodencylinder, partly with coarse and partly with tine emery, to he used forthe D is a wooden cylinder, turned smaller on that POP I purpose ofsharp- I ening household cutlery and other implements.

tion which is to be covered with coarse emery A, so

that the coating of coarse emery shall be thicker than the coating offine emery B.

G is the spring clamp. E is the crank. F is the standard for holding thecylinder.

G is the puncture, into which the extremities H H. of the clamp areinserted.

The drawing represents the full average size of the apparatus forhousehold use. It represents one-half the cylinder covered with coarseand one-half with fine emery. The proportions may be varied at pleasnre.

Having thus describedmy invention,

.As an article of manufacture, a parlor grindstoue, consisting of theframe F, the cylinder 1D, coated with emery A and B, the crank E, andclamp 0, corn structcd as described.

JOSIAH M. SIMPSON.

